Keyless lock.



UNITED STATES ADAM LOOHNER, OF JEFFERSON CITY, MISSOURI.

KEYLESS LOCKl Speccationof Letters. Patent.

Patented Jan. 22, 1907..

.Application sied, Jiyio, i906.4 semi ira/325,522.

T0 all' whom t T11/ty concern:

Be it known that I, ADAM LocHNER, a citi-- zen of the United States, residing at Jefferson City, in the county of Cole and State of Missouri, have invented a new and' useful' Key less Lock, ofwhichf thefollowingis a specication.

This inventionl has relation to keylesslocks; and it consists in the novelr construction and arrangement of its parts, as herein after shown and described'.

The object of the invention is toprovide a keyless lock of si'mple andA durable construction.

The lock is adapted tobe embedded inl a door or other swinging member' andi isl pro4 vided with knobs which are locatedv on theopposite sides ot the door. The said knobs are attached to shafts, one ot which is fixedy i to 'a laterally-extending arm, whichlis adapted to be swung so as to hold the bolts inwithdrawn position. Two bolts are provided, andi means for guiding the longitudinali move-I ment of the bolts is located within the casing.. The shaft of thek other knob is provided with a catch, which is adapted tov be; turned? and receive a lug located upon` the said arm. Said catch ismounted upon a disk, and adj acent to the said disk is located a notched cir-A cular guide. The catch: extends almost all of the way around the edgeof said guide, and the said lug is adapted -topass through the open space in the catch andi enter thenotclr of the guide, when the catch may be swung over the same and retain the said lug in locked position. When this is done, the end of the bolt-controlling arm is soy located that the bolts are in extended positions. Suitable dials are provided over which the knobs are turned, and the said dialsk are provided with characters from which suitable combinations may be chosen for the purpose ot moving the said arm so that it will withdraw the bolts.

In the accompanying drawings, Figure 1 is a sideelevation of the lock mechanism with the side of the casing removed. Figl 2 is an elevation of the opposite side of the lock mechanismwith the side of the lock removed. Fig.3 is a longitudinal sectional view of the lock. Fig. 4 is a side elevation of a dial-plate and knobs.

The lock consists of the casing 1,in the end of which is located the longitudinal movable bolts 2 2. The cross-bar 3 is located Within the casing 1 and at an intermediate point is provided with the arc shaped portion f1.

lis providedy with a flange 11. located upon the disk 9. 1 lisattached to the casing 1'. is provided between the periphery of the j'plate 13- andl the edge of the plate 6. yrecess 15 is provided in the periphery of the plate 13 and' is located in alinement with the flongitudinal axis of' the cut-awayportion 16 jot/the plate 9. 161s disposed in thearc of a circle the center of which is the center of the shaft 17.

f The inner ends of the bolts 2 2 enter theparallel guides 5, whichk are located inthe fixed Eplate 6.. `througlrthe casing 1 and is providedl at its The shaft 7 extends transversely ends with the knobs 8 8. The disk 9 is locatedv upon the shaft 7 and is-provided with thelaterally-extending arm 10, which in turn The lug 12 is The circular plate The space 14 The The said cut-away portion The shaft 17 is journaled` in the casing 1 and' extends transversely and concentrically through theplate 13. The disk 18 is attached to the shaft 17, and the catch 19 is attached to the'saiddisk 18. sists ofa wire rod which extends out from the 'V disk 18a-nd passes down along-the edge of the plate 1'3, as at 20. around the saidl plate 13 and through the space 14 and` terminates at a point short of the portion 20. The said rod 19 is adapted toibe'moved so-that the opening between the The said catch 19 con- The` rod then passes portion 20 andthe end thereof may be brought into register with the recess 15 ot the plate 1:3, and=when this is the case the lug 12 may be turnedV into the said recess 151er moved out of the same. When the opening between the portion 20 and the'end` of the'said rod 1 9 does not register with the said recess 115,

i. the lug 1-2 cannot move into the said recess or move out of the same, for the reason that in attempting to enter or move out of the said recess it will come in contact laterally with the said rod.V When the lug 12 is moved into the recess 15, the flange end 11 of the arm 10 is located beyond the end of the arc portion 4 of the cross-bar 3, and consequently the bolts 2 2 are in extended position, the coilsprings 21 21 being operatively connected with said bolts to force them in extended position.

The outward movement of the bolts 2 is limited by the cross-bar 227 which is provided With perforations that receive the said bolts 2, which is adapted to come in contact with the inner surface ofthe end ofthe casing 1. When the lug 12 is moved to the end oi the cut-away portion 16 of the plate 6, the

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flanged end 1 1 of the arm 10 is moved beyond the opposite end of the arc portion 4 of the cross-bar 3. Consequently the bolts 2 2 are in extended positions. When, however, the lug 12 is moved to a point intermediate the ends of the recess 15 and the shoulder at the end of the cut-away portion 16, the flange 11 of the arm 10 passes behind the intermediate portion of the arc 4 of the cross-bar 3, and the said bar 3 and its attachments are withdrawn against the tension of the coil-springs 21 21. In this way the bolts 2 2 are withdrawn.

From the foregoing description it is obvious that even should the space between the portion 2O and the end of the rod 19 be brought into register with the recess 15 the shaft 7 must be properly turned in order to withdraw the bolts 2 2 and that unless the said space at the end of the rod 19 is brought into register with the recess 15 when the lug 12 is in the said recess the bolts 2 2 cannot be withdrawn.

The knobs 8 8 and 23 23 are provided with suitable indicating-arrows 24, which may be turned toward any of the characters in the dials 25. The dial-plates 26 are attached to the outer sides of the door and are located under the said knobs.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A keyless lock consisting of a casing, a bolt slidably located in the casing, a shaft extending transversely through the casing, an arm attached to said shaft and adapted to engage the bolt to hold the same in withdrawn position, a lug attached to the shaft, a

late having a recess adapted to receive said ug, and a rotatable member adapted to move over said lug to retain `the same in said recess. K

2. A keyless lock consisting of a casing, a bolt slidablylocated therein, a rotatable shaft carrying means for engaging and disengaging the bolt and having an attachment provided with a lug, a recessed plate located in the casing and adapted to receive said lug, a rotatable shaft passing through said plate, and carrying attachments which are adapted to pass over the said lug and retain the same in said recess.

3. A keyless lock consisting of a casing, a bolt slidably located in said casing, a plate having a recess which serves as a guide for the bolt, said plate having a cut-away portion, a shaft rotatably located in the casing, said shaft having a means provided wit-h a lug, and an extending arm, said arm being adapted to engage the bolt and hold the same in withdrawn position, said lug being adapted to move at the cut-away portion of said plate,

a second plate located within the casing in proximity to the first said plate, said second plate having a-recess located opposite the cutaway port-ion of the first said plate, a shaft passing through the second said plate, and means carried by said shaft for retaining the said lug in the recess of the second said plate.

4. A keyless lock consisting of a plurality of bolts, a casing receiving the same, springs actuating said bolts, a cross-bar attached to the bolts and having an intermediate arc portion, a rotatable shaft-carrying means adapt-- ed to engage the arc portion of said bar and hold the bolts in withdrawn position.

5. A keyless lock consisting of a casing, bolts slidably located therein, means connected with the bolts and maintaining the same normally in extended position, a shaft journaled in the casing, a carrying means for withdrawing the bolts, said means having a lug, a plate having a recess adapted to receive said lug, a second shaft journaled in the casing, and a carrying means adapted to be moved over said lug and retain the same within the recess of said plate.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

ADAM LOCHNER.

Witnesses:

THonPE GORDON, ,ADAM ERHART, Jr. 

